Custom Kitting

Medical Device & IVD Kitting

Contract kit assembly and packaging for device and IVD manufacturers, built in an FDA-registered, ISO 13485:2016 certified facility. You stay the legal manufacturer. We operate inside your quality system.

20M+

Kits Built Annually

<0.01%

Defect Rate

ISO 13485

Certified Quality System

The Basics

What medical device and IVD kitting is

Medical device and IVD kitting is the contract assembly of separate components, devices, reagents, consumables, labels and instructions into a single finished kit, built to a manufacturer's released specification. It is a step beyond warehousing: the output is a finished, labeled, lot-controlled kit rather than a box of picked items.

In vitro diagnostic products are medical devices. FDA defines them at 21 CFR 809.3(a) as reagents, instruments and systems intended for use in the diagnosis of disease or other conditions, intended for use in the collection, preparation and examination of specimens taken from the human body, and confirms they are devices under the Federal Food, Drug, and Cosmetic Act. That is why assembling them is a regulated activity rather than a packing job, and it is the reason most of this page is about quality systems rather than boxes.

The Question That Blocks These Deals

You remain the legal manufacturer

Outsourcing assembly does not outsource accountability, and the first thing a quality director wants settled is who owns what. DS2 assembles and packages to your released specification, under a quality agreement, as a supplier operating inside your quality system and subject to your audit and change-control requirements.

Device classification, premarket obligations, labeling decisions, complaint handling and reporting, and UDI and GUDID responsibility stay with you as the legal manufacturer. What moves to us is the controlled execution: sourcing, incoming inspection, assembly, labeling, traceability and release. Getting that boundary written down before the first build is the difference between a supplier relationship that survives an audit and one that does not.

The Regulatory Stack

What actually governs a kit

The part of this work that generic contract packagers leave out. Each of these changes how a kit is built, labeled and released.

The kit is itself a device

Assembly is a regulated act

FDA treats a convenience kit as a device in its own right. Under 21 CFR 807.20 an establishment that assembles, repackages or relabels a device must register and list. FDA exercises enforcement discretion on premarket notification for kits built from legally marketed, cleared components, but registration, listing, the prohibition on misbranding and good manufacturing practice all still apply.

QMSR, in force now

21 CFR Part 820 and ISO 13485 are now one requirement

Since 2 February 2026, Part 820 is the Quality Management System Regulation and incorporates ISO 13485:2016 by reference. The old Device Master Record and Device History Record sections no longer exist; that content now sits in the ISO 13485 medical device file and its record requirements. DS2's certified quality system is built to the standard the US requirement now points at.

IVD labeling

Label content is controlled content

IVDs distributed in the US carry the label elements set out in 21 CFR 809.10, including intended use, storage conditions, expiration or stability control, and a lot or control number that traces to the full manufacturing history. Research and investigational shipments carry their own prescribed statements under 809.10(c). We treat label artwork as controlled: proofed against your released specification, version-controlled, and physically segregated by status on the line.

UDI

The kit carries its own identifier

Under 21 CFR 801.20 every device label and device package bears a unique device identifier, so a finished kit carries its own. Devices packaged inside the immediate container are excepted under 801.30(a)(11), but only where the kit label itself bears a valid UDI. We prepare and maintain your kit UDI and GUDID data and can submit it under your labeler account at your direction.

Expiry

The shortest-dated component sets the kit

A kit expires when its earliest-expiring component does. We capture component expiry at receiving, derive and print the kit date from it, rotate stock first-expired-first-out, and hold to an agreed minimum remaining shelf life at ship so kits do not arrive with weeks left on them.

The return leg

Compliant transport designed into the kit

For kits that bring a specimen back, the return packaging is part of the design, not an afterthought. Diagnostic specimens generally ship as Biological Substance, Category B under UN3373 and Packing Instruction 650, which sets the triple-packaging configuration the kit has to accommodate from the start.

A note on accuracy: DS2 is an FDA-registered establishment and holds ISO 13485:2016 certification. Registration is not FDA approval or endorsement of a facility or its products, and an ISO 13485 certificate is not an FDA finding. Kits are supplied non-sterile unless separately scoped. Selling into the EU brings in Regulation (EU) 2017/746; classification, conformity assessment and CE marking remain with you as the legal manufacturer.

Kit Types

What we build

Configurations DS2 assembles for device and IVD manufacturers, at pilot volumes through to commercial scale.

IVD reagent & consumable kits

Reagents, controls, consumables and instructions assembled to your released bill of materials, with expiry-matched components and controlled storage.

Specimen collection & transport kits

Blood, urine, saliva and swab collection kits with the transport media, secondary packaging and return mailer designed together rather than bolted on.

Lateral flow & rapid test kits

Cassette, buffer, dropper, desiccant and IFU packed to a fixed configuration with lot-level control across every component.

Molecular & PCR collection kits

Swab and media configurations for molecular workflows, held and shipped inside each component's labeled temperature range.

At-home & DTC test kits

Patient-facing kits with the instructions, registration materials and compliant return packaging a self-collected sample needs to arrive testable.

Running a study rather than a product launch? See clinical trial kitting. Need warehousing and distribution as well? Kitting, fulfillment & distribution covers the 3PL side.

Control

What we hold ourselves to

Components are sourced through a network of more than 200 vetted suppliers, with lot numbers and expiry dates captured at receiving and carried through to the finished kit, so a component lot can be traced forward to every kit it entered and every consignee it reached. That traceability is what makes a targeted recall possible instead of a total one.

Assembly is 100% barcode-verified, with weight checks and visual quality control at every station, running at defect rates below 0.01% across more than 20 million kits a year. Components and finished kits are held in a temperature-controlled facility within each product's labeled range, with production rooms under 24/7 camera coverage. The facility is FDA-registered, ISO 13485:2016 and ISO 9001 certified, DOT and IATA certified for dangerous goods, and runs a cGMP-ready assembly environment. Full detail is on the certifications page.

Onboarding

From specification to commercial build

A staged path with the quality interface agreed in writing before volume production starts.

Want to see build quality first? Request a sample kit.

01

Specification & BOM intake

We work from your released specification and bill of materials, confirm component sources and expiry logic, and agree the label content and kit configuration in writing before anything is built.

02

Quality agreement

Scope, change control and prior notification, record retention, complaint routing and audit rights are set out in a quality agreement, so the interface between your quality system and ours is documented rather than assumed.

03

First article & pilot build

A first article is built and approved against the specification, followed by a pilot run that proves the line, the label, the packout and the documentation before commercial volume.

04

Commercial build & release

Barcode-verified assembly with in-process checks and defined release criteria, full lot genealogy from component to finished kit, and deviations handled through a documented nonconformance and CAPA process.

FAQ

Medical device & IVD kitting questions

What is medical device kitting?

Medical device kitting is the contract assembly of separate components, devices, reagents, consumables, labels and instructions into a single finished kit built to a manufacturer's released specification. It sits between component supply and distribution: assembly and packaging of a finished, labeled, lot-controlled kit, rather than the pick-and-pack of already-finished goods.

Who is the legal manufacturer when kitting is outsourced?

You are. DS2 assembles and packages to your released specification under a quality agreement, operating inside your quality system as a supplier subject to your audit and change-control requirements. Product ownership, device classification, premarket obligations, labeling decisions and UDI or GUDID responsibility remain with you as the legal manufacturer. That separation should be documented before the first build, and we treat it as a starting point rather than a detail.

Is assembling a kit an FDA-regulated activity?

Yes. FDA treats a convenience kit as a medical device in its own right, and under 21 CFR 807.20 an establishment that assembles, repackages or relabels a device must register with FDA and list. FDA exercises enforcement discretion on premarket notification for kits assembled from legally marketed components, but registration, listing, the prohibition on misbranding and good manufacturing practice requirements continue to apply.

What is QMSR, and does ISO 13485 certification cover it?

Since 2 February 2026, FDA's Quality Management System Regulation at 21 CFR Part 820 incorporates ISO 13485:2016 by reference, so the US requirement and the international standard now point at the same quality system. They are aligned, not identical: FDA has said conformity with ISO 13485 alone does not fully satisfy the QMSR, because supplemental FDA requirements still apply, and a certificate from a registrar is not an FDA finding and does not exempt a facility from FDA inspection.

Does a kit need its own UDI?

Generally yes. 21 CFR 801.20 requires a UDI on every device label and device package, so a finished convenience kit carries its own. Devices packaged within the immediate container of the kit are excepted under 801.30(a)(11), but that exception is conditional on the kit label bearing a valid UDI, and components that already arrive marked keep their manufacturer's identifier. GUDID submission is the labeler's obligation and stays with you; we can prepare, maintain and submit the data at your direction.

Can DS2 assemble kits containing sterile components?

Yes, where components arrive individually pre-sterilized in their manufacturer's own validated sterile barrier packaging. In that model we do not create or seal a sterile barrier, and the assembled kit is supplied non-sterile; what we own is the integrity of each component's existing barrier through controlled receipt, storage, handling and inspection, with lot traceability back to each component manufacturer. Kits that require a sterile barrier to be formed or terminally sterilized fall under ISO 11607 and should be scoped with us directly.

How does DS2 handle kit expiry dating?

The earliest-expiring component sets the expiry of the finished kit. Component lot and expiry are captured at receiving, the kit date is derived and printed from that, stock is rotated first-expired-first-out, and we hold to an agreed minimum remaining shelf life at the point of shipment.

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